Patents by Inventor Frederick Frank Holub

Frederick Frank Holub has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Impact modified polyester compositions
    Patent number: 4122061
    Abstract: Reinforced, impact modified thermoplastic polyester compositions are provided which comprise a poly(1,4-butylene terephthalate) resin, a poly(ethylene terephthalate) resin, a fibrous glass reinforcement alone or in combination with a mineral reinforcing filler and, as an impact modifier therefor, a polyolefin or olefin based copolymer resin. The polyolefinic impact modifier is easily dispersed in the compositions and provides significantly improved impact strength in surprisingly small amounts, in comparison with corresponding compositions which are unmodified.
    Type: Grant
    Filed: December 23, 1976
    Date of Patent: October 24, 1978
    Assignee: General Electric Company
    Inventors: Frederick Frank Holub, Phillip Steven Wilson